Function ZSTD_getDictID_fromDict
unsafe extern C { unwind: false } fn ZSTD_getDictID_fromDict(dict: *const c_void, dictSize: usize) -> c_uint
ZSTD_getDictID_fromDict() : Requires v1.4.0+ Provides the dictID stored within dictionary. if @return == 0, the dictionary is not conformant with Zstandard specification. It can still be loaded, but as a content-only dictionary.